Add an existing project to a newly created git repository

I recently created a project on my local machine using maven archetype.  See my previous post on how to generate a new project from installed maven catalog.  I then got github.com created a repository for this project, for example: git@github.com:zhentao/test1.git

How can I associate my existing project with the newly created git repo?  There are 2 ways to do it:

First option:

1. clone the git repo:
git clone git@github.com:zhentao/test1.git

It will clone the repo to test1 folder.

2. copy your existing project to test1 folder

cp -r /path/to/project /path/to/test1

3.  commit and push all files

git add .
git commit -m "first commit"
git push -u origin master

Second option (more git style)

1. go to your project folder

cd /path/to/project

2. run the following commands:

git init
git add .
git commit -m "first commit"
git remote add origin git@github.com:zhentao/test1.git
  
The above commands associate your project to git remote repo.

3. run the following commands to to merge the conflict:

git fetch
git merge origin/master
 --run it if conflicts exist
git mergetool
git commit

git push -u origin master